Locks Nuts and Tab Washers are used to locate bearings and other components onto a shaft or adaptor sleeve. They can also be used when mounting bearings on to taper shaft seats and dismounting bearings using withdrawal sleeves.

Locks Nuts are secured using the appropriate Tab Washer (sold separately) which will locate on a keyway machined into the shaft or adaptor sleeve. One of the outside tabs on the washer is then bent into a slot on the Lock Nut to complete assembly.